TW200722130A - Needle guard mechanism with leaf spring - Google Patents

Needle guard mechanism with leaf spring

Info

Publication number
TW200722130A
TW200722130A TW095129040A TW95129040A TW200722130A TW 200722130 A TW200722130 A TW 200722130A TW 095129040 A TW095129040 A TW 095129040A TW 95129040 A TW95129040 A TW 95129040A TW 200722130 A TW200722130 A TW 200722130A
Authority
TW
Taiwan
Prior art keywords
needle
clip
needle guard
grip
leaf spring
Prior art date
Application number
TW095129040A
Other languages
Chinese (zh)
Other versions
TWI337546B (en
Inventor
Dennis M Bialecki
Thomas F Lilley Jr
Sean J Albert
Thomas K Sutton
David J Goral
Original Assignee
Smiths Medical Asd Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smiths Medical Asd Inc filed Critical Smiths Medical Asd Inc
Publication of TW200722130A publication Critical patent/TW200722130A/en
Application granted granted Critical
Publication of TWI337546B publication Critical patent/TWI337546B/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3273—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel freely sliding on needle shaft without connection to syringe or needle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0618—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • A61M2005/325—Means obstructing the needle passage at distal end of a needle protection sleeve
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0606—"Over-the-needle" catheter assemblies, e.g. I.V. catheters

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Anesthesiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Vascular Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

A needle guard includes a clip with a canting wall to grip the needle shaft and a distal wall to block the tip thereof, wherein the canting and distal walls may be interconnected by an angled strut, a spring member, such as a leaf spring, may have a portion extending past an edge of the strut to bias the clip to grip the needle shaft, and the distal wall may be or include a stylus and have an L-shape to define a lip to help block the needle tip. The clip may have a depending heel to help pivot the clip about a ledge to grip the needle shaft. A needle support may be provided to limit flexure of the needle which might otherwise allow the needle to come loose from the clip. Arrangements for limiting rotation of the needle hub and needle guard housing are provided, as is a protective shroud to reduce the risk of inadvertent activation of the needle guard. Further, the needle guard may be used with a catheter assembly. Also provided is an improved duckbill release mechanism.
TW095129040A 2005-08-08 2006-08-08 Needle guard mechanism with leaf spring TWI337546B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US11/161,553 US20070038187A1 (en) 2005-08-08 2005-08-08 Needle guard mechanism with anti-rotation feature
US11/161,541 US20070073221A1 (en) 2005-08-08 2005-08-08 Needle guard mechanism with leaf spring
US11/161,547 US20070038183A1 (en) 2005-08-08 2005-08-08 Needle guard clip with stylus
US11/161,546 US20070038182A1 (en) 2005-08-08 2005-08-08 Needle guard mechanism with needle support
US11/161,551 US7753877B2 (en) 2005-08-08 2005-08-08 Needle guard strut wall clip

Publications (2)

Publication Number Publication Date
TW200722130A true TW200722130A (en) 2007-06-16
TWI337546B TWI337546B (en) 2011-02-21

Family

ID=37946074

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095129040A TWI337546B (en) 2005-08-08 2006-08-08 Needle guard mechanism with leaf spring

Country Status (7)

Country Link
US (6) US20070038183A1 (en)
EP (5) EP1752180A3 (en)
CN (1) CN101257941A (en)
AR (1) AR057492A1 (en)
CA (5) CA2553056A1 (en)
MX (1) MXPA06009008A (en)
TW (1) TWI337546B (en)

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US20070038179A1 (en) 2007-02-15
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US20070038182A1 (en) 2007-02-15
MXPA06009008A (en) 2007-02-07
EP1752180A2 (en) 2007-02-14
US20070073221A1 (en) 2007-03-29
EP1752178A2 (en) 2007-02-14
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CA2553090A1 (en) 2007-02-08
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US8647301B2 (en) 2014-02-11
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US20070038183A1 (en) 2007-02-15
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US20120259293A1 (en) 2012-10-11
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EP1752181A1 (en) 2007-02-14
US7753877B2 (en) 2010-07-13
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AR057492A1 (en) 2007-12-05
CA2553091A1 (en) 2007-02-08

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